* <pre>{@code
 * // Find child element
 * Element child = parent.child("version").orElse(null);
 *
 * // Check if child exists
 * boolean hasVersion = parent.child("version").isPresent();
 *
 * // Get child text content
 * String version = parent.child("version")
 *     .map(Element::textContent)
 *     .orElse(null);
 *
 * // Get trimmed text content

     * @return JSON response with deletion status
     */
    @Execute
    public JsonResponse<ApiResult> delete$setting(final String id) {
        duplicateHostService.getDuplicateHost(id).ifPresent(entity -> {
            try {
                duplicateHostService.delete(entity);
                saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
            } catch (final Exception e) {

     */
    // DELETE /api/admin/dict/kuromoji/setting/{dictId}/{id}
    @Execute
    public JsonResponse<ApiResult> delete$setting(final String dictId, final long id) {
        kuromojiService.getKuromojiItem(dictId, id).ifPresent(entity -> {
            kuromojiService.delete(dictId, entity);
            saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
        }).orElse(() -> {

     */
    // DELETE /api/admin/dict/protwords/setting/{dictId}/{id}
    @Execute
    public JsonResponse<ApiResult> delete$setting(final String dictId, final long id) {
        protwordsService.getProtwordsItem(dictId, id).ifPresent(entity -> {
            protwordsService.delete(dictId, entity);
            saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
        }).orElse(() -> {

     */
    // DELETE /api/admin/crawlinginfo/log/{id}
    @Execute
    public JsonResponse<ApiResult> delete$log(final String id) {
        crawlingInfoService.getCrawlingInfo(id).ifPresent(entity -> {
            try {
                crawlingInfoService.delete(entity);
                saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
            } catch (final Exception e) {

     * @return JSON response with result status
     */
    @Execute
    public JsonResponse<ApiResult> delete$log(final String id) {
        failureUrlService.getFailureUrl(id).ifPresent(entity -> {
            try {
                failureUrlService.delete(entity);
                saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
            } catch (final Exception e) {

     * @return JSON response confirming deletion
     */
    @Execute
    public JsonResponse<ApiResult> delete$setting(final String id) {
        accessTokenService.getAccessToken(id).ifPresent(entity -> {
            try {
                accessTokenService.delete(entity);
                saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
            } catch (final Exception e) {

            if (user.hasRoles(ComponentUtil.getFessConfig().getAuthenticationAdminRolesAsArray())) {
                return Constants.SEARCH_PREFERENCE_LOCAL;
            }
            return user.getUserId();
        }).ifPresent(p -> searchRequestBuilder.setPreference(p)).orElse(() -> LaRequestUtil.getOptionalRequest().map(r -> {
            final HttpSession session = r.getSession(false);
            if (session != null) {

                }
            }
        };
        Optional<Activation> root = Optional.of(activation);
        stk.push(new ActivationFrame("activation", root));
        root.map(Activation::getFile).ifPresent(fa -> {
            stk.push(new ActivationFrame("file", Optional.of(fa)));
            stk.push(new ActivationFrame("exists", Optional.empty()));
            validator.accept(fa.getExists());

            deleteTempFile(tempFile);
            return;
        }

        try {
            configParser.getWebConfig().ifPresent(c -> webConfigBhv.insert(c));
            configParser.getFileConfig().ifPresent(c -> fileConfigBhv.insert(c));
            labelTypeBhv.batchInsert(Arrays.stream(configParser.getLabelTypes()).collect(Collectors.toList()));

            if (logger.isInfoEnabled()) {